A:
Positive:
1 x 1082615455 x 216523097 x 1546593535 x 3093187349 x 3102051745 x 620412443 x 443158863 x 12215
Negative:
-1 x -108261545-5 x -21652309-7 x -15465935-35 x -3093187-349 x -310205-1745 x -62041-2443 x -44315-8863 x -12215
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 108,261,545, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 108,261,545 | |
| -1 | -108,261,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 108,261,545.
Example:
1 x 108,261,545 = 108,261,545
and
-1 x -108,261,545 = 108,261,545
Notice both answers equal 108,261,545
With that explanation out of the way, let's continue. Next, we take the number 108,261,545 and divide it by 2:
108,261,545 ÷ 2 = 54,130,772.5
If the quotient is a whole number, then 2 and 54,130,772.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 108,261,545 | |
| -1 | -108,261,545 |
Now, we try dividing 108,261,545 by 3:
108,261,545 ÷ 3 = 36,087,181.6667
If the quotient is a whole number, then 3 and 36,087,181.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 108,261,545 | |
| -1 | -108,261,545 |
Let's try dividing by 4:
108,261,545 ÷ 4 = 27,065,386.25
If the quotient is a whole number, then 4 and 27,065,386.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 108,261,545 | |
| -1 | 108,261,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 349 | 1,745 | 2,443 | 8,863 | 12,215 | 44,315 | 62,041 | 310,205 | 3,093,187 | 15,465,935 | 21,652,309 | 108,261,545 |
| -1 | -5 | -7 | -35 | -349 | -1,745 | -2,443 | -8,863 | -12,215 | -44,315 | -62,041 | -310,205 | -3,093,187 | -15,465,935 | -21,652,309 | -108,261,545 |
Here are some more numbers to try:
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